[UPDATE, March 23, 2012:] President Obama today waded into the growing national controversy surrounding the death of Trayvon Martin, commenting, "If I had a son, he'd look like Trayvon," the The New York Times reported. Obama dodged questions about whether George Zimmerman, the neighborhood watch volunteer who shot Martin, should be arrested for the killing, saying he didn't want to impede any possible investigation by the U.S. Attorney General, Eric Holder. At a rally Thursday in Sanford, Fl., the orlando suburb where Martin lived, Rev. Al Sharpton, with Martin's parents at his side, called the case a civil rights issue, according to an Associated Press report. "We cannot allow a precedent when a man can just kill one of us ... and then walk out with the murder weapon," Sharpton said.